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Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 30.1° with the normal to the surface, while in the slab it makes an angle of 22.5° with the normal. What is the index of refraction of the transparent material?
a closed Gaussian surface in the shape of a cube of edge length 2.03 m. What is the net charge (in Coulombs) contained by the cube
The m=1 bright fringe is located 2.0 cm from the centerline. The interference pattern is observed on a screen located 4.0 m from the slits. What is the separation between the slits
A proton and an electron have the same wavelength. Which particle is moving faster and which possesses more kinetic energy
A textbook of mass 2.08kg rests on a frictionless, horizontal surface. What is the tension in the part of the cord attached to the textbook
A 1,200 W hair dryer is operated on a 120 V circuit for 15 minutes. If electricity costs $0.10/kW h, what was the cost of using the blow dryer.
A U-shaped tube open to the air at both ends contains some mercury. Calculate the vertical distance h from the top of the mercury in the right-hand arm of the tube to the top of the water in the left-hand arm
A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. find the angle q that the resultant vector makes with the east direction
An electron and a positron each have a mass of 9.11 x 10-31 kg. They collide and both vanish, determine the energy of the electromagnetic radiation
A woman holds a tube of lipstick 7.5 cm from a spherical mirror and notices that the image of the tube is inverted, Calculate the focal length of the mirror
The output voltage of an AC generator is given by ?v = 107 V sin (45?t). Find average power delivered to the inductor
a 1.50 m section of it at one end is bent 90° in the negative z direction. Illustrate what is the total magnetic flux through the surface? Choose directions for the area vectors so that the flux through each surface is positive.
A vertical spring of spring constant 140N/m supports a mass of 80g. The mass oscillates in a tube of liquid. Estimate the damping constant b
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